爆破震动作用下地下洞室支护结构的动态响应分析Effect of Blasting Vibration on the Support Structure of an Underground Chamber
黄玉锋,舒大强,陈维炎
摘要(Abstract):
大跨度地下洞室顶拱锚喷支护结构在爆破震动作用下的稳定问题是决定地下厂房安全施工与运行的关键因素,运用动力有限元数值模拟,研究了该类型支护结构在爆破震动作用下的动态响应特点,得出了结构中峰值振速和峰值应力的分布规律。
关键词(KeyWords): 大跨度地下洞室;支护结构;爆破震动;动态响应
基金项目(Foundation):
作者(Author): 黄玉锋,舒大强,陈维炎
参考文献(References):
- [1]李铁汉.岩体力学[M].北京:地质出版社,1980.[1]L i Tiehan.Rock M echan ics[M].Be ijing:Geological Pub-lish ing House,1980.
- [2]邹志晖,汪志林.锚杆在不同岩体中的工作机理[J].岩土工程学报,1993,16(5):71~78.[2]Zou Zh ihu i,W ang Zh ilin.The M achan ism of AnchorageBolts in D ifferrentRocks[J].Ch inese Journal ofGeotech-n ical Engineering,1993,16(5):71~78.
- [3]Dowd ing C H,A imone C T.Mu ltip le B last-hole Stressesand M easured Fragm entation[J].Rock M echan ics andRock Engineering,1985,(18):17~36.
- [4]李宁,Swoboda G.爆破荷载的数值模拟与应用[J].岩石力学与工程学报,1994,13(4):357~364.[4]L i N ing,Swoboda G.Num erical S imu lation of B lastingLoads[J].Ch inese Journal of Rock M echan ics and Engi-neering,1994,13(4):357~364.
- [5]舒大强.岩质高边坡爆破震动荷载及对边坡稳定性影响的研究[J].工程爆破,1996,(4):431~439.[5]Shu Daq iang.The Study of B lasting Loads on the Rock-m ass ofH igh Slope and the E ffects on the Stab ility of theSlope[J].Engineering B lasting,1996,(4):431~439.
- [6]卢文波.岩石钻爆开挖中预裂缝的隔震效果分析[J].爆炸与冲击,1997,17(3):193~198.[6]Lu W enbo.Analysis of V ibration Isolation E ffect of Pre-sp liting Crack in Rock Excavation by B lasting[J].Exp lo-sion and Shock W aves,1997,17(3):193~198.